Abstract: The present invention relates to a device for regenerating nerve cells and suppressing immune diseases, and more particularly, to a device for regenerating nerve cells and suppressing immune diseases, which uses a contact lens containing a conductive material to increase the effect of microcurrent on nerve cell regeneration and immune response suppression. The device for regenerating nerve cells and suppressing immune diseases comprises: a contact lens comprising a body configured to be worn on a cornea, and a conductive material inserted into the body and serving to induce a microcurrent generated outside the body; a plurality of channels configured to come into close contact with skins around eyes and to generate a flow of microcurrent on upper part of the contact lens; and a signal supply unit configured to supply electrical signals to the plurality of channels.

Abstract: The invention provides compositions and methods for in situ repair of compromised polymeric membranes. The invention is useful for repairing compromised polymeric membranes without requiring the knowledge of damage location or the disassembly of a system. The invention relates to preferential blocking of damaged sites using agglomerates and subsequent cross-linking to form sturdy plugs.

Abstract: The present invention relates to a pressure hollow fiber membrane module, including: a housing in which a raw water inlet, a concentrate water outlet, and a treated water outlet are formed; an inner flow path that is formed in the central portion of the housing; a plurality of hollow fiber membranes that are arranged around the inner flow path; a treated water collection unit that communicates with the inner flow path and the hollow fiber membrane; a first opening/closing unit that opens and closes an open end of the inner flow path; and a second opening/closing unit that opens and closes an open end of the hollow fiber membrane.

Abstract: A system for cleaning a membrane of the present invention includes: a first membrane filtration tank which includes a membrane and an aerator, filters inflow raw water by membrane filtration, and discharges treated water and water to be treated, respectively; a pressure gauge for measuring a transmembrane pressure and a flow meter for measuring a permeation flux which are provided at a treated water discharge line of the first membrane filtration tank; and a controller which calculates a water permeability recovery rate by calculating the water permeability from the differential pressure measured at the pressure gauge and the permeation flux measured at the flow meter, predicts a membrane contamination degree from the calculated water permeability recovery rate, and controls a back-pulsing interval and an intermittent aeration interval.

Abstract: The present invention relates to a pressure hollow fiber membrane module, including: a housing in which a raw water inlet, a concentrate water outlet, and a treated water outlet are formed; an inner flow path that is formed in the central portion of the housing; a plurality of hollow fiber membranes that are arranged around the inner flow path; a treated water collection unit that communicates with the inner flow path and the hollow fiber membrane; a first opening/closing unit that opens and closes an open end of the inner flow path; and a second opening/closing unit that opens and closes an open end of the hollow fiber membrane.

Abstract: The invention provides compositions and methods for in situ repair of compromised polymeric membranes. The invention is useful for repairing compromised polymeric membranes without requiring the knowledge of damage location or the disassembly of a system. The invention relates to preferential blocking of damaged sites using agglomerates and subsequent cross-linking to form sturdy plugs.

Abstract: A system for cleaning a membrane of the present invention includes: a first membrane filtration tank which includes a membrane and an aerator, filters inflow raw water by membrane filtration, and discharges treated water and water to be treated, respectively; a pressure gauge for measuring a transmembrane pressure and a flow meter for measuring a permeation flux which are provided at a treated water discharge line of the first membrane filtration tank; and a controller which calculates a water permeability recovery rate by calculating the water permeability from the differential pressure measured at the pressure gauge and the permeation flux measured at the flow meter, predicts a membrane contamination degree from the calculated water permeability recovery rate, and controls a back-pulsing interval and an intermittent aeration interval.

Abstract: A separation membrane cleaning system and a separation membrane cleaning method. A separation membrane cleaning system includes: a membrane filtration bath; a treated water storage bath configured to store treated water produced by the membrane filtration bath and discharge the treated water during reverse cleaning or chemical cleaning; a chemical storage bath configured to supply a chemical; a first pipe fluidically communicated between the membrane filtration bath and the treated water storage bath to transport the treated water produced by the membrane filtration bath to the treated water storage bath, and a fourth pipe fluidically communicated with the first pipe to transport the chemical to the membrane filtration bath; a second pipe to transport the treated water from the treated water storage bath; and a third pipe fluidically communicated with the fourth pipe to transport the chemical from the chemical storage bath.